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Plus version:
"The main changes are cosmetic, and we have followed customer feedback in some places. The one easily visible change is that the new card is no longer low-profile PCI compliant. This feature of the old Catweasel MK4 was rarely used by our customers, so we decided to use the increased space for a better arrangement of the two SID sockets. These are more easily accessible now. Additional filters in the audio part are geared towards filtering noise from high-performance graphics cards and low-quality power supplies. Another novelty is the external audio jack and an angled internal audio connector for better accessibility"